It is very    {#blank#}1{#/blank#} to deal with the rubbish in cities. This is because rubbish not only pollutes the environment but also does harm to people's   {#blank#}2{#/blank#} . We are trying to find some ways of dealing with the rubbish. First, the rubbish can be divided into different kinds. Newspaper and glass can be  {#blank#}3{#/blank#} . Used tins can be made into beautiful handicrafts（手工艺品）. Polluted water is a big {#blank#}4{#/blank#} . It must be dealt with properly before we let it flow into the river. Some harmful rubbish can be buried（埋）so that it will cause {#blank#}5{#/blank#} pollution.

Marie: Hi, Carla. What are you doing?

Carla: I am writing a card for my teacher.

Marie: Sounds interesting. Which teachers will you miss the {#blank#}1{#/blank#}after Junior high school, then?

Caria: Mmm, I think Ms. Li and Mr. Cai.

Marie: I know Ms. Li was very {#blank#}2{#/blank#}with you in the math class. She helped you work out the answers with some proper {#blank#}3{#/blank#}no matter how difficult the problems were.

Carla: Exactly, and Mr. Cai, our science teacher, guided me to do a lot better in science than before. He always spent time explaining things to me {#blank#}4{#/blank#}whenever I was in trouble. Who will you miss?

Marie: I will miss my English teacher, Ms. Criffin She {#blank#}5{#/blank#}me to speak English loudly in class. And she often encouraged tile," You can do it!" Because of her, I put in more effort and won the first prize in an English contest.

Carla: Well, shall we get each of them a card and a gift to say thank you?

Marie: It couldn't be a better idea. Let's do it right now!